The DOI matches its Crossref record; 14 of the 14 references it cites were found in a registry or an index.
Thermodynamic Analysis of Cerium-Based Oxides for Solar Thermochemical Fuel Production
Abstract
The thermodynamics of ceria-based metal oxides M x Ce 1– x O 2, where M = Gd, Y, Sm, Ca, Sr, have been studied in relation to their applicability as reactive intermediates in solar thermochemical redox cycles for splitting H 2 O and CO 2 . Oxygen nonstoichiometry was modeled and extrapolated to high temperatures and reduction extents by applying an ideal solution model in conjunction with a defect interaction model. Subsequently, relevant thermodynamic parameters were computed and equilibrium H 2 and CO concentrations determined as a function of reduction conditions ( T, P O 2 ) and ensuing oxidation temperature. At 1 atm and above 1673 K, the degree of reduction is negatively correlated to dopant concentration, regardless of the type of dopant considered. Consequently, at a given reduction temperature, more H 2 and CO is generated at equilibrium for pure ceria compared to any of the other doped ceria materials considered. Although the reduction enthalpy decreases as the dopant concentration increases, the overall solar-to-fuel energy conversion efficiency is greater for pure ceria (20.2% at δ = 0.1, P O 2 = 10 ppm). Only when considering heat recovery of nearly 100% are theoretical efficiencies higher for the dopants.
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Citations
Cites
Physical, chemical and electrochemical properties of pure and doped ceria
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Self-citationSolar thermochemical production of hydrogen––a review
Steinfeld, A. (2005) · Solar Energy · doi:10.1016/j.solener.2003.12.012 · Cited by 1,335
Self-citationSustainable hydrocarbon fuels by recycling CO 2 and H 2 O with renewable or nuclear energy
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Drop-in fuels from sunlight and air
Schäppi, R., Rutz, D., Dähler, F., Muroyama, A., Haueter, P., Lilliestam, J., Patt, A., Furler, P., & Steinfeld, A. (2022) · Nature · doi:10.1038/s41586-021-04174-y · Cited by 411
Self-citationPower to liquid and power to gas: An option for the German Energiewende
Varone, A., & Ferrari, M. (2015) · Renewable and Sustainable Energy Reviews · doi:10.1016/j.rser.2015.01.049 · Cited by 317
Perovskite oxides – a review on a versatile material class for solar-to-fuel conversion processes
Kubicek, M., Bork, A. H., & Rupp, J. L. M. (2017) · Journal of Materials Chemistry A · doi:10.1039/c7ta00987a · Cited by 316
Metadata
- Authors
- Scheffe, J. R., & Steinfeld, A.
- Venue
- Energy & Fuels
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-02-22
- Volume
- 26
- Issue
- 3
- Pages
- 1928-1936
- ISSN
- 0887-0624 (ISSN-L)
- 1520-5029
- OpenAlex
- W2330105415
- Cited by
- 256
- References
- 14
- FWCI
- 9.94
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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